Home / 2,059.10-2,841.36-1,219.80

Finding the Fourth Proportional to 2,059.10, 2,841.36 and 1,219.80

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Solution

The fourth proportional to 2,059.10, 2,841.36 and 1,219.80 is: 1,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059.10 : 2,841.36 = 1,219.80 : x
  2. Step 2: Convert to fraction form
    2,059.10/2,841.36 = 1,219.80/x
  3. Step 3: Cross multiply
    2,059.10x = 2,841.36 × 1,219.80
  4. Step 4: Simplify right side
    2,059.10x = 3,465,896.51
  5. Step 5: Solve for x
    x = 3,465,896.51/2,059.10
  6. Step 6: Final answer
    x = 1,683.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.